A 4-person marketing agency was spending 6 hours on every client proposal. They now spend 45 minutes, and their close rate actually went up.

Here's the backstory. This agency owner (let's call her Sarah) was hand-writing every proposal from scratch. Researching the prospect's business, drafting the scope, writing the pricing rationale, building the timeline.

Six hours per proposal, sometimes more. She could only send out two a week, which meant she was leaving money on the table constantly.

Then she started feeding a single, structured prompt into ChatGPT before every proposal. The output wasn't a finished proposal, but it gave her 80% of the heavy lifting in one shot.

Here's the prompt.

You are a proposal strategist for a [type of agency/consultancy, e.g., digital marketing agency]. I need to write a client proposal for the following prospect:

Prospect company: [prospect company name]

Prospect industry: [their industry, e.g., e-commerce skincare brand]

What they asked for: [brief description of the service they inquired about, e.g., "paid social media management and monthly reporting"]

Their likely pain point: [your best guess at their core problem, e.g., "they're spending on ads but can't tell what's working"]

Our price range for this service: [your typical price range, e.g., "$2,500-$4,000/month"]

Project timeline: [estimated timeline, e.g., "3-month engagement with monthly check-ins"]

Please generate the following sections for a client proposal:

1. **Executive Summary** (3-4 sentences that mirror back their problem and position our service as the solution - do NOT use generic marketing language, be specific to their situation)

2. **Scope of Work** (bullet-pointed list of exactly what's included and exactly what's NOT included - be explicit about boundaries)

3. **Proposed Timeline** (week-by-week or month-by-month breakdown of deliverables)

4. **Pricing Rationale** (don't just list the price - explain WHY this investment makes sense relative to their likely revenue or goals)

5. **Why Us** (3 bullet points that differentiate us from competitors - focus on process and results, not vague claims)

6. **Next Steps** (a clear, low-friction call to action with a specific suggested meeting date one week from today)

Write in a confident but not arrogant tone. Keep it under 800 words total. Avoid buzzwords like "synergy," "leverage," "cutting-edge," or "holistic."

WHERE THIS FALLS SHORT

This prompt won't know your prospect's internal politics, budget drama, or the nuances of your past relationship with them.

It also tends to be slightly optimistic in the "Why Us" section, so you'll want to gut-check those claims against what you can actually deliver.

The output is a strong first draft, not a final product. Your expertise in the edit is what makes it land.